会python真的可以为所欲为0(回)
379天前
这里还有人吗1(回)
564天前这里还有人吗0(回)
564天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
788天前到处都是羊，不想上班0(回)
868天前
鸽子
0(回)
873天前import tkinter as tk |
import time |
|
# 创建主窗口 |
window = tk.Tk() |
window.title('进度条') |
window.geometry('630x150') |
|
# 设置下载进度条 |
tk.Label(window, text='下载进度:', ).place(x=50, y=60) |
canvas = tk.Canvas(window, width=465, height=22, bg="white") |
canvas.place(x=110, y=60) |
|
# 显示下载进度 |
def progress(): |
# 填充进度条 |
fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="green") |
x = 500 # 未知变量，可更改 |
n = 465 / x # 465是矩形填充满的次数 |
for i in range(x): |
n = n + 465 / x |
canvas.coords(fill_line, (0, 0, n, 60)) |
window.update() |
time.sleep(0.02) # 控制进度条流动的速度 |
|
# 清空进度条 |
fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="white") |
x = 500 # 未知变量，可更改 |
n = 465 / x # 465是矩形填充满的次数 |
|
for t in range(x): |
n = n + 465 / x |
# 以矩形的长度作为变量值更新 |
canvas.coords(fill_line, (0, 0, n, 60)) |
window.update() |
time.sleep(0) # 时间为0，即飞速清空进度条 |
|
btn_download = tk.Button(window, text='启动进度条', command=progress) |
btn_download.place(x=400, y=105) |
|
window.mainloop() |
